4. Horners Plc. has four (4) investment projects with the following costs and expected rates of return. All projects are independent of each other. The firm estimates that it can issue debt with a yield to maturity of 10%, and its tax rate is 40%. It can also issue preferred stock at $90 per share, which pays a constant dividend of $9.00 per year .The company's common stock currently sells for $100/ share and is expected to pay a dividend of $6.00 next year. Dividends are expected to grow at a constant rate of 5%. The company's capital structure consists of 60% common stock, 30% debt, and 10% preferred stock. (i) What is the cost of each of the capital components? (ii) What is the WACC? (iii)If all the projects are of average risk, which should the firm select